const http = require('http')

const app = http.createServer()

app.on('request', (req, res) => {
  if (req.url === '/api/todolist') {
    res.writeHead(200, {
      'Content-Type': 'application/json;charset=utf-8',
      // 下面代码解决跨域问题
      "Access-Control-Allow-Origin": "*",
      'Access-Control-Allow-Headers': 'Content-type',
      "Access-Control-Allow-Methods": "PUT,POST,GET,DELETE,OPTIONS,PATCH",
      'Access-Control-Max-Age': 1728000,//预请求缓存20天

    })
    res.end('["hello","world","fjk"]')

  }
})

app.listen(3001)
console.log('服务器启动 浏览器访问 localhost:3001/api/todolist')